Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Gibbous 100%

19:24

06:51

15 Bad
16 OK
17 OK
18 OK
19 Good
20 Good
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Good
03 Good
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:45, Set: 19:02, Transit: 12:52. Moon - Rise: 19:24, Set: 06:51. Civil Dark: 19:37 - 06:11. Nautical Dark: 20:18 - 05:30. Astro Dark: 21:01 - 04:47

Total Clouds (% Sky Obscured)

68
37
29
34
16
3
100
92
57
52
71
13
1
95
100
98
98
95
95
94
98
98
97
97

Low Clouds (% Sky Obscured)

62
29
27
34
16
3
0
8
57
48
45
7
1
0
0
2
14
9
26
27
48
73
74
20

Medium Clouds (% Sky Obscured)

32
31
14
9
4
1
0
0
0
0
0
0
0
0
0
2
1
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
100
91
0
11
45
6
0
95
100
98
98
95
94
92
95
92
88
97

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
45
43
44
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
9
7
7
6
5
4
4
5
5
6
6
6
6
6
6
6
6
7
7
6
5
5

Chance of Frost

Temperature (°C)

19
19
18
17
15
14
13
13
12
12
11
11
10
10
9
9
9
10
12
14
16
17
18
19

Feels Like (°C)

19
19
18
17
15
14
13
13
12
12
11
11
10
10
8
7
8
10
12
14
16
17
18
19

Dew Point (°C)

13
13
12
12
12
11
11
12
11
11
10
10
10
9
9
9
9
9
10
11
11
11
11
11

Relative Humidity (%)

68
67
69
72
78
83
88
93
94
97
96
96
96
95
98
99
97
92
87
80
75
69
63
58

Pressure (mb)

1024
1024
1025
1025
1025
1026
1026
1027
1027
1027
1028
1028
1028
1027
1028
1028
1028
1029
1029
1029
1029
1029
1029
1029

Ozone (du)

294
291
289
290
291
290
288
286
286
286
284
284
283
282
281
280
281
280
280
280
281
283
280
279

Tuesday 21

Full Moon 99%

19:37

08:06

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 OK
00 Good
01 Bad
02 Bad
03 Bad
04 Bad
05 OK
06 Good
07 Good
08 Good
09 Good
10 OK
11 OK
12 Good
13 Good
14 Good

Sun - Rise: 06:47, Set: 19:00, Transit: 12:52. Moon - Rise: 19:37, Set: 08:06. Civil Dark: 19:34 - 06:12. Nautical Dark: 20:15 - 05:32. Astro Dark: 20:58 - 04:49

Total Clouds (% Sky Obscured)

97
98
98
98
98
95
95
91
13
11
77
48
75
71
45
13
13
0
5
36
41
2
2
6

Low Clouds (% Sky Obscured)

3
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
2
1
2
2
6

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

97
98
98
98
98
95
95
91
13
11
77
48
75
71
45
13
13
0
0
35
41
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
6
6
6
6
7
7
6
6
6
6
6
7
7
7
8
7
7
9
9
10
11
10
11

Chance of Frost

Temperature (°C)

20
20
20
19
17
16
15
14
14
13
13
13
12
12
12
11
11
11
13
15
17
18
19
20

Feels Like (°C)

20
20
20
19
17
16
15
14
14
13
13
13
12
12
12
11
11
11
13
15
17
18
19
20

Dew Point (°C)

11
11
12
12
12
12
12
12
12
12
13
12
12
12
12
11
11
10
11
12
12
12
13
12

Relative Humidity (%)

56
56
60
65
70
75
81
88
93
96
98
98
98
98
100
100
99
93
88
80
74
69
65
60

Pressure (mb)

1028
1028
1028
1028
1028
1028
1028
1028
1028
1027
1028
1027
1026
1026
1026
1026
1027
1027
1027
1027
1026
1026
1026
1025

Ozone (du)

279
278
278
278
276
276
276
276
275
275
276
275
275
275
276
276
276
275
275
274
273
273
272
271

Wednesday 22

Waning Gibbous 96%

19:49

09:19

15 Good
16 Good
17 Good
18 Good
19 Bad
20 Good
21 Good
22 Good
23 OK
00 OK
01 Good
02 Good
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:48, Set: 18:57, Transit: 12:52. Moon - Rise: 19:49, Set: 09:19. Civil Dark: 19:32 - 06:14. Nautical Dark: 20:12 - 05:33. Astro Dark: 20:55 - 04:51

Total Clouds (% Sky Obscured)

11
10
2
2
63
16
1
4
10
13
2
9
78
97
81
41
60
60
60
60
60
60
100
100

Low Clouds (% Sky Obscured)

11
10
2
2
2
1
1
0
0
0
0
3
6
13
13
14
59
59
59
59
59
59
100
100

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
4
5
0
0
2
3
10
7
1
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
62
16
0
0
6
13
2
5
77
97
77
34
4
4
4
4
4
4
20
20

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
2
2
3
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.01
0.01
0.01
0
0

Wind Speed/Direction (mph)

11
11
11
10
10
9
9
9
11
11
11
12
12
12
12
12
12
13
15
17
18
19
18
19

Chance of Frost

Temperature (°C)

21
21
20
19
18
17
16
15
14
14
13
13
12
12
12
12
13
13
15
16
17
18
18
19

Feels Like (°C)

21
21
20
19
18
17
16
15
14
14
13
13
12
12
12
12
13
13
15
16
17
18
18
19

Dew Point (°C)

13
13
13
13
13
13
13
13
13
13
13
12
12
12
12
12
12
12
13
13
12
11
11
10

Relative Humidity (%)

59
60
64
69
73
77
83
89
92
95
98
99
99
99
99
97
96
93
88
82
73
67
60
56

Pressure (mb)

1024
1024
1023
1023
1022
1022
1022
1022
1021
1021
1019
1019
1018
1018
1017
1017
1016
1016
1016
1016
1016
1016
1016
1015

Ozone (du)

270
270
271
271
269
271
273
274
276
278
277
276
278
278
280
279
281
281
281
281
281
282
280
279

Thursday 23

Waning Gibbous 91%

20:01

10:32

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 OK
08 OK
09 OK
10 OK
11 OK
12 OK
13 Good
14 Good

Sun - Rise: 06:50, Set: 18:55, Transit: 12:51. Moon - Rise: 20:01, Set: 10:32. Civil Dark: 19:29 - 06:16. Nautical Dark: 20:10 - 05:35. Astro Dark: 20:52 - 04:53

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
0
0
0
0
0
0
20
20
20
20
20
20
0
0

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
0
0
0
0
0
0
5
5
5
5
5
5
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
17
17
17
17
17
17
0
0

High Clouds (% Sky Obscured)

20
20
20
20
39
39
39
39
39
39
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.01
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

19
18
18
16
14
13
12
11
11
10
11
10
10
9
9
9
9
10
12
14
15
16
16
16

Chance of Frost

Temperature (°C)

18
18
17
16
15
14
14
13
12
12
12
11
11
11
10
10
9
10
12
14
16
17
19
20

Feels Like (°C)

18
18
17
16
15
14
14
13
12
12
12
11
11
11
10
8
7
10
12
14
16
17
19
20

Dew Point (°C)

11
10
9
9
10
10
10
10
10
10
11
11
11
10
10
9
8
9
9
11
11
12
13
13

Relative Humidity (%)

60
61
60
63
69
74
78
83
88
91
94
96
98
98
98
96
93
89
83
78
75
72
68
64

Pressure (mb)

1015
1014
1014
1015
1015
1015
1016
1016
1016
1016
1015
1015
1015
1014
1014
1014
1015
1015
1014
1014
1014
1013
1012
1012

Ozone (du)

279
280
280
281
278
277
277
277
277
276
278
277
276
275
274
274
274
274
274
273
273
272
267
266

Friday 24

Waning Gibbous 84%

20:16

11:45

15 Good
16 Good
17 Good
18 Good
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 OK
12 OK
13 Bad
14 Bad

Sun - Rise: 06:52, Set: 18:53, Transit: 12:51. Moon - Rise: 20:16, Set: 11:45. Civil Dark: 19:27 - 06:18. Nautical Dark: 20:07 - 05:37. Astro Dark: 20:50 - 04:55

Total Clouds (% Sky Obscured)

0
0
0
0
79
79
79
79
79
79
41
41
41
41
41
41
45
45
45
45
45
45
95
95

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
17
17
17
17
17
17
6
6
6
6
6
6
91
91

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
79
79
79
79
79
79
28
28
28
28
28
28
41
41
41
41
41
41
47
47

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.01
0.01
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
16
14
12
11
11
11
11
11
12
12
12
11
11
10
10
8
8
9
9
9
9
10
10

Chance of Frost

Temperature (°C)

21
21
20
20
19
18
17
16
16
15
16
16
15
15
15
14
15
15
16
17
18
19
19
20

Feels Like (°C)

21
21
20
20
19
18
17
16
16
16
16
16
16
15
15
14
15
16
16
17
18
19
19
20

Dew Point (°C)

14
14
15
15
14
14
14
15
15
15
16
16
15
15
15
14
15
15
15
15
16
16
16
16

Relative Humidity (%)

63
66
70
74
76
79
85
92
97
99
100
100
100
100
100
100
97
94
92
90
88
85
81
76

Pressure (mb)

1011
1011
1010
1010
1010
1010
1010
1010
1010
1010
1011
1010
1011
1011
1011
1011
1012
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

265
265
265
264
262
261
262
262
260
259
258
257
257
257
257
257
261
262
262
263
263
264
264
266

Saturday 25

Waning Gibbous 76%

20:33

12:57

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 OK
02 OK
03 OK
04 OK
05 OK
06 OK
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:54, Set: 18:50, Transit: 12:51. Moon - Rise: 20:33, Set: 12:57. Civil Dark: 19:24 - 06:19. Nautical Dark: 20:05 - 05:39. Astro Dark: 20:47 - 04:57

Total Clouds (% Sky Obscured)

95
95
95
95
52
52
52
52
52
52
16
16
16
16
16
16
96
96
96
96
96
96
91
91

Low Clouds (% Sky Obscured)

91
91
91
91
24
24
24
24
24
24
16
16
16
16
16
16
1
1
1
1
1
1
1
1

Medium Clouds (% Sky Obscured)

0
0
0
0
20
20
20
20
20
20
0
0
0
0
0
0
2
2
2
2
2
2
11
11

High Clouds (% Sky Obscured)

47
47
47
47
34
34
34
34
34
34
0
0
0
0
0
0
96
96
96
96
96
96
90
90

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.02

Wind Speed/Direction (mph)

12
12
12
11
10
10
10
10
10
10
11
11
11
11
11
11
11
11
11
11
12
12
13
12

Chance of Frost

Temperature (°C)

20
21
20
20
19
19
18
17
16
16
15
15
14
14
13
12
12
13
15
16
18
19
20
20

Feels Like (°C)

20
21
20
20
19
19
18
17
16
16
15
15
15
14
13
12
12
13
15
16
18
19
20
20

Dew Point (°C)

15
15
15
15
15
15
15
15
15
15
15
15
14
14
13
12
12
13
14
14
15
16
15
15

Relative Humidity (%)

73
72
73
74
77
80
84
89
93
98
100
100
100
100
100
100
99
96
92
88
84
79
75
74

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012

Ozone (du)

268
270
271
272
272
273
273
273
274
275
276
277
278
280
280
281
281
280
279
277
277
277
277
277

Sunday 26

Waning Gibbous 68%

20:55

14:06

15 Bad
16 Bad
17 Bad
18 Bad
19 OK
20 OK
21 Bad
22 OK
23 OK
00 OK
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 OK
14 OK

Sun - Rise: 06:55, Set: 18:48, Transit: 12:50. Moon - Rise: 20:55, Set: 14:06. Civil Dark: 19:22 - 06:21. Nautical Dark: 20:02 - 05:41. Astro Dark: 20:44 - 04:59

Total Clouds (% Sky Obscured)

91
91
91
91
45
45
45
45
45
45
95
95
95
95
95
95
100
100
100
100
100
100
41
41

Low Clouds (% Sky Obscured)

1
1
1
1
17
17
17
17
17
17
14
14
14
14
14
14
27
27
27
27
27
27
32
32

Medium Clouds (% Sky Obscured)

11
11
11
11
41
41
41
41
41
41
38
38
38
38
38
38
99
99
99
99
99
99
28
28

High Clouds (% Sky Obscured)

90
90
90
90
0
0
0
0
0
0
94
94
94
94
94
94
77
77
77
77
77
77
0
0

ISS Passover

Visibility (miles)

10
8
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
7
8
9
9
6
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.07
0.12
0.14
0.13
0.1
0.05
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
11
10
9
9
8
9
9
8
8
8
8
8
8
8
8
9
9
9
9
9
9
9
10

Chance of Frost

Temperature (°C)

18
17
16
16
15
15
14
13
12
12
11
11
11
11
11
11
11
11
12
13
14
16
17
18

Feels Like (°C)

18
17
16
16
15
15
14
13
12
12
11
11
11
11
11
11
11
11
12
13
14
16
17
18

Dew Point (°C)

15
14
13
13
12
12
12
12
12
12
11
11
11
11
11
11
11
11
11
11
12
12
11
11

Relative Humidity (%)

78
82
83
83
83
87
91
95
98
100
100
100
100
100
100
100
99
97
94
88
84
78
70
64

Pressure (mb)

1012
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1013
1014
1014
1014
1014
1015
1015
1015
1015
1015
1014

Ozone (du)

276
275
274
272
272
272
273
275
276
278
279
278
277
275
275
276
276
277
278
279
280
281
282
281

Forecast for Boston, Lincolnshire, UK (52.98,-0.02)

Generated: 20/09/21 15:27:14. Forecast: 20/09/21 to 26/09/21. Timezone: UTC+1.00